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Cognomen Gerow (杰罗 , Gerow , Геров ) , globally, is quite a rare family name. The last name Gerow is habitual in Bulgaria, where it is quite a rare surname, Canada, and New Zealand, where it is a rare surname. Measured by absolute frequency, it is the most numerous in the United States, Canada, and Bulgaria. Much less frequently, Gerow is the forename as well as the last name.